Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
ly vang » ly hang, ly van, ly quang
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
san ly » van ly, ban ly
va cau » van cau, va cac, va dau
vi cua » vai cua, di cua
x hoi » xa hoi, x ho
o hoi » co hoi, o hoc, o hai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuat san ly vang ((((x hoi) OR (5 hoi))) or (o hoi)). lieu va cau truc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ly vang ((((x hoi) OR (5 hoi))) OR (o hoi)). lieu va cau truc va hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat san ly vang ((((x hoi) OR (5 hoi))) or (o hoi)). lieu va cau truc va hanh vi cua tre*".